应用的场景一般是：和硬件设备连接，需要软件获取WiFi名称，手动输入密码后，进行硬件配网操作。
1.进入开发者中心，在Identifiers下，在Capabilities里勾选Access WiFi Information。如图一
图一
2.xcode里添加获取WiFi信息的权限。如图二
图二
3.开启定位：iOS13以后，获取WiFi名称需要先开启定位
1） info.plist 文件需要配置获取的权限
Privacy - Location Always Usage Description
Privacy - Location When In Use Usage Description
2）开启定位代码
-(CLLocationManager*)locationManager{
if (!_locationManager) {
_locationManager = [[CLLocationManager alloc] init];
_locationManager.delegate = self;
_locationManager.distanceFilter = kCLLocationAccuracyThreeKilometers;
[_locationManager requestWhenInUseAuthorization];
}
return _locationManager;
}
- (void)viewDidLoad {
[super viewDidLoad];
[self.locationManager startUpdatingLocation];
}
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations{
self.wifiTF.text = [NSObject wifiName];
}
4.获取WiFi名称
头文件
#import <ifaddrs.h>
#import <arpa/inet.h>
#import <SystemConfiguration/CaptiveNetwork.h>
//封装的方法
+ (NSString *)wifiName{
NSString *wifiName = @"Not Found";
CFArrayRef myArray = CNCopySupportedInterfaces();
if (myArray != nil) {
CFDictionaryRef myDict =CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0));
if (myDict != nil) {
NSDictionary *dict = (NSDictionary*)CFBridgingRelease(myDict);
wifiName = [dict valueForKey:@"SSID"];
}
}
return wifiName;
}
大功告成！！！
